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Finding the Fourth Proportional to 352,314.56, 528,470.42 and 127,622.41

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Solution

The fourth proportional to 352,314.56, 528,470.42 and 127,622.41 is: 191,433.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,314.56 : 528,470.42 = 127,622.41 : x
  2. Step 2: Convert to fraction form
    352,314.56/528,470.42 = 127,622.41/x
  3. Step 3: Cross multiply
    352,314.56x = 528,470.42 × 127,622.41
  4. Step 4: Simplify right side
    352,314.56x = 67,444,666,654.82
  5. Step 5: Solve for x
    x = 67,444,666,654.82/352,314.56
  6. Step 6: Final answer
    x = 191,433.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.